I am also interested in the Iphone and have been doing some digging. And it seems apple is the only one that carries them so don't believe any of the chinese wholesalers on the trade sites that claim they have hundreds of them. Apple can't even get these out fast enough and don't offer any discounts for activation contracts. The only way your going to make money off one is to unlock it and sell it. It has been unlocked but uses a hardware mod, or a fairly expensive card reader . Software solution was said to be released yesterday but has been delayed at&t lawyers.
